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Measured entry

cultui-hero-heatmap

hero-effectgradient-glowmotion on file

A client-side, split-layout hero with configurable copy, call to action, badges, and responsive animated heatmap shaders. It ships as a shadcn registry component and imports the Paper Design React shader, a cn utility, plus local shadcn Button and Badge components.

Specimen
Motion capture of the mounted demo, recorded by the harness. No audio track.
Harness screenshot of cultui-hero-heatmap at 375 pixels wide
Harness screenshot at 375 pixels wide. No horizontal overflow recorded.
Harness screenshot of cultui-hero-heatmap at 768 pixels wide
Harness screenshot at 768 pixels wide. No horizontal overflow recorded.
Harness screenshot of cultui-hero-heatmap at 1440 pixels wide
Harness screenshot at 1440 pixels wide. No horizontal overflow recorded.

Measured

Every value below was written by the harness on the run that produced the frames above. None of it is derived from the prose.

Harness measurements recorded for cultui-hero-heatmap
BuildOK
MountOK
Console errors1
Uncaught page errors2
Horizontal overflowclean at 375, 768, 1440
Axe critical0
Axe serious1
Axe moderate2
Axe minor0
Gzip marginal43.1 KB (108.5 KB build, 65.4 KB baseline)
Bare modeFAIL
Provider requiredNO
Demo usedwritten from the component source API

What the harness recorded

PAGE ERROR

Error: Failed to load image

PAGE ERROR

Error: Failed to load image

CONSOLE

Failed to load resource: the server responded with a status of 404 (Not Found)

Verdict

A flexible, visually distinctive hero for teams already invested in shadcn, but it needs a shadcn-style setup and is not drop-in elsewhere. Fix the default image path and review text contrast before shipping.

Use it if

  • You want a dark campaign or product hero whose visual can be tuned through shader props.
  • Your app already uses shadcn conventions and can supply the expected icon asset.
  • You need composable slots for custom copy, actions, badges, or desktop and mobile visuals.

Skip it if

  • You need a lightweight static hero without a shader dependency.
  • Your accessibility bar requires acceptable contrast without a design pass.
  • You cannot host or replace the default cult icon image, which otherwise produces image-load errors.
  • Your project does not use Tailwind and you do not want to translate its extensive utility styling.

Install

Installation record for cultui-hero-heatmap
Declared dependencies@paper-design/shaders-react, radix-ui
Missing on installnone
Bare installfails once the shadcn-style helpers are removed, so it needs that setup
Providerno provider required in the harness

In a non-shadcn project, add the Paper Design shader package and Radix UI, provide a cn class-merging utility, recreate the Button and Badge components, configure Tailwind with the referenced theme tokens, and host or override the cult icon asset. Keep it in a client-capable React boundary.

Source and credit

This page is a review, not a copy. The component source lives with its author and this site does not republish it. Read the license before you use anything.

Author repository

github.com/nolly-studio/cult-ui
License
MIT
Record published
2026-08-14

Alternatives

Other published entries for the hero-effect pattern, ordered by what they measured: mounts first, then clean axe scans, then bare-mode passes, then the smaller bundle.